Cotton-cultivator.



G. BLOHM COTTON CULTIVATOR.

APPLICATION FILED MAYII. l9ll.

H. INVENTOR WITNESSES 4 .5 /9 In P3 Q'Q/JLOFBZO/ZIZZZ' G. BiOHM.

COTTON ClllTIVATOH.

APPLICATION nun MAYIl, m1.

Pamnwd Feb. 26, 1918.

2 SHEETS-SHEET 2- INVENTOR A1 'TORNEY WITNESSES 1 UNITED PATENT OFFICE.

GEORGEYBZOHM, OF EL CENTRO, CALIFORNIA.

che. v

' corresponding parts ingthe several figures GQT'ION CUL'DIVA-TOR.

Specification of Letters Patent.

Patented Feb. 26, 1918..

To (ZZZ whom it may concern: Be it known that I, GEORGEBLOHM, a citizen of the United States, residing at ElCentrfo,. in the county of Imperial and State of be of simple and. improved construction.

A further object of the invention is to produce simple and improved means whereby adjustment of the chopping mechanism may be eiiected. A further object of the invention is to simplify and improve the construction of the chopping mechanism.

A. further object ofzthe invention is'to prodilce' simple and improved means for throwing the chopping mechanismin and out of With these and other ends in View which will readily appear as the nature of the invention isbetter understood, the same consists in the improved construction and novel arrangement vand combination ofparts'which will he hereinafter fully described and par tieularly pointed out in the claims. 7

"In: the acompanying drawings has been illustrated a s-im 1e andpreferred formof the=ii1ientiion,,fit eing, however, understood that, nojlimitation is necessarily made to the precise structural details therein exhibited,

bnt that changes, alterationsv and modifications within the scope ofthe claims may be 7 resorted to when desired".

In the, drawings: Fl g'l l lifel 15,8: top plan view of a machine constructed in: accordance with the inven- Eigt '2is a side elevation ofthe same.

3 .is-a bottom plan view.

Fig 4; is a. longitudinal, sectional View taken on theline ofFi gj, .1.

'Eti'g., .5. isa, transverse; sectional View taken on' the line 5 5' in Fig.

Ei-g. .6 is a, iront. view. is 3 perspectiye. defiail view of the ping .deitice' detached and with parts en.. aw-a3;.;

hnol

of the drawings are denoted by like characters of reference.

The main frame of the improved machine is composed of side members 15 which are connected together and spaced apart by cross bars 16. The side bars 15 are provided with bearings 17 for the axle 18' carrying the ground wheels 19 The ground wheels may be fixed on the axle or they may be connected therewith by clutch devices of well known construction which, however, it is not considered necessary to illustrate, such clutch devices being well known in the art and not herein claimed. The-side members 1'5 have been shown as being constructed of channel beams having" outer and inner 'flangesZOyQI on which standards 22 carryin-g cultivator blades or shovels 23 are adjustablyse'cured by clips or clamps" 24'. A longitudinal frame ha-r25 is securely mount-- ed onsome of the cross'har's P6 incl' 'iding the foremost one, said" longitudinal frame bar being provided at its forward end with a downturne'd lug or flange 26 on which a guide member 27 is boited or otherwise secured, said guide member being provided with grooved flanges wherein is guided the vertical limb" 28 of an L-shaped bracket B the other limb of which 29 extends rearwardly in an approximately horizontal plane, said limb carrying the drivers' seat 3Q which is additionally supported by a threaded post or bolt-31" that extends downwardly through the 'frame bar and is provided with adjusting" nuts- 32*. A second threaded post or bolti "3-3 rising from the frame bar 25 and extending also through the foremost cross bar 16 extends through thehorizontai limb -29 of the bracket B and is provided-with adjusting nutsBt'.

tibnnected with one ofthe intermediate frame bars 16' as a downwardly extending heraijsedor lowered; fThe adji stinentyhovvever, is not so extensive as to render a corresponding adjustability of the bracket 35 necessary since the shaft may be permitted to rock in its bearing on said bracket 35 sufl'iciently to permit the necessary degree of adjustment of the forward end of the shaft. The shaft 36 carries a pinion 37 which meshes with a crown gear 38 on the axle 18, the shaft being pressed in a rearward direction by a spring 39 coiled on said shaft between the pinion 37 and the vertical limb 28 of the bracket B, the parts being so arranged and proportioned that by the action of said spring the pinion 37 will be held in mesh with the crown gear 38. The hand lever 40 is provided having a fork 41, the limbs of which are ape'rtured for the shaft 36, the latter being provided with a collar 42 fixed between the limbs of the fork so that by means of the lever the shaft may be forced forwardly against the tension of the spring 39 until the pinion 37 is out of mesh with the crown gear 38, thus interruptin the rotation of the shaft.

The shaft 36 carries at its forward end a chopping device, the same consisting of a flanged hub 43 which is securely mounted on the shaft and with the forward face of which a clamping disk 44 is connected by means of bolts 45, said hub and disk clamping between them the angular bracket 46 with which other angular brackets 47 are connected by bolts 48. The brackets 47 have wings that extend radially with respect to the axis of the shaft 36, said wings carrying hoes or cutting blades 49 that are secured thereon by means of bolts 50. The bolts 48 which connect together the angular brackets 46 and 47 constitute pivot members whereby the hoes or cutting blades may be disposed at various angles with respect to the axis of the shaft 36. When the machine is used for chopping out cotton, only one or two hoe blades need be employed. The cutting mechanism may, however, be utilized for tilling and pulverizin the soil and when the machine is used for t is purpose, a reater number of cutting blades may be use ,there being no intention of limiting myself to any particular number.

The main frame is provided with arms or brackets 51 that extend forwardly from the side members and which are connected toether by means of an. arch member 52 the imbs of which are also connected with the side members of the main frame by means of brace bars 53 the forward ends of which may be utilized for the attachment of draft although the arch is provided with a centrall disposed draft member or clevis 54. wit

which a tongue may be connected. The machine may be drawn by one or moredraft animals, according to the size thereof. and

when several rows of plants are to be simultaneously operated upon, or when the soil'is blades or shovels carried by the standards serving to throw the soil toward or from'the growing plants, as may be required, according to the arrangement of the said blades or shovels. By raising or lowering the L-shaped bracket B, the cutting apparatus may be correspondingly raised or lowered so as to engage the ground to the required depth. By manipulating the hand lever 40, the cutting mechanism may be thrown out of gear when desired.

Having thus described the invention, what is claimed as new is:

1. In a machine of the class described, a wheel supported frame having a revolving axle, a bar extending longitudinally of the frame and having a lug at its front end, a guide fixed on said lug, an Lshaped bracket having a vertical limb engaging the guide and a rearwardly extending horizontal limb, means for effecting vertical adjustment of the L-shaped bracket with respect to the longitudinal frame bar, a longitudinal cutter carrying shaft having its forward end journaled in the vertical limb of the L'-sh aped bracket, and an additional bearing for the rearward end of the cutter carrying shaft.

2. In a machine of the class described, a wheel supportedframe havin a"revolving axle, a bar extending longitu inally of'the frame and having a lug at its front end; a guide fixed on said In an L-shaped bracket havinga vertical lim engaging the guide.

means for throwmgsaid tIBLIlSIDlSSiOll- IIIQMlS out of gear. j

3. In a machine'of the class described, a wheel supported framehaving a longitudinalframe bar provided with a lug at its front end, a guide fixed on said In ,asL-

shaped bracket having avertical' limb engaged in said guide and a rearwardly extending horizontal limb, a, seat carried by the horizontal limb, threaded members connecting the horizontal limb of the L-shaped 5 bracket with the longitudinal frame bar, ad-

justing nuts on said threaded members, a cutter carrying shaft deriving motion from the supporting wheels and havin its forward end journaled in the vertica limb of the L-shaped bracket, and an additional bearing for the rearward end of the cutter carryin shaft.

11 testimony whereof I affix my si nature.

GEORGE BL HM.

00.1 0! thin what may be 0M for he cent: each, by addressing the Commissioner of ratentn,

Washington, 11. c." 

